Swivel socket



July 2s, 1925.

P. ARBON Filed A115 21. 1923 C A A lll Patented July 28, 1925.

UNITED STATES PAUL ARBON, OF TULSA, OKLAHOMA.

SWIVEL SOCKET.

Application mea August 21, 1923. serialy No. 658,590.

T0 all whom t may concern:

Be it known that PAUL ARBON, a subject of the King of Great Britain, residing at Tulsa, in the county of Tulsa and State of Oklahoma, has invented certain new and useful Improvements in Swivel Sockets, of which the following is a specification.

This invention relates to an improved form of swivel socket, such as is utilized in the drilling of oil wells, and relates particularly to improvements in the well-known Burns socket.

Heretofore attempts have been made, as for instance by Miller and Holliday, to construct sockets of the type in question in such a wav as to permit the insertion or the removal of the swivel from the socket without disconnecting the cable. In these constructions it has been found that the body and neck of the socket has been weakened to such an extent as to make same impractical for the tive and a half inch tools, as in order to place a swivel with a neck on the inside of such a socket so much of the body and the neck has to be cut away as to leave a mere shell to carry the tools.

The main object of the present invention is to so alter the construction of the Burns socket, heretofore mentioned, as to permit the removal oit' the swivel and rope without decreasing the strength of the same so that the convenience of this construction may be present in connection with all sizes of tools.

More specifically the present invention includes such features as the removal of the rod to one side of the slot and the provision of a steel bushing, which is inserted at the top of the socket, and capable of adjustment to prevent the line from coming out.

Reference will be had to the accompanying drawing forming a part of this specification and wherein like numerals of reference designate corresponding parts throughout the several views, in which- Fig. 1 is a side elevation showing the parts assembled,

receiving the upper extremity of the tools supported by the socket. The body A is formed with the cylindrical cavity B which forms an upward extension of the threaded opening a. The upper end of the socket member is formed with a longitudinal bore C which communicates at its lower end with the cylindrical cavity B and the threaded opening a. The cylindrical cavity B and thelongitudinal bore C are concentric with the longitudinal axis of the body and due to the-size oi` the bore C an annular shoulder or abutment c is formed which engages the swivel slip. As is common in this type of socket the cylindrical cavity B merges on one side into the lateral opening D, the upper end of which terminates below the plane of the abutment c and the lower end of which terminates at a point approximately midway the length of the socket or slightly therebelow so as to form an opening of suicient size as to permit the insertion of the swivel slip.

The upper end of the longitudinal bore vC is abruptly enlarged to form a shoulder and recess for the reception of the steel bushing E, the latter terminating flush with the upper end of the socket body and having its central opening flush with the bore C. This steel bushing E is formed with a lateral opening e which corresponds with the lateral slot c formed in the neck of the bushing and which slot extends from the lateral passa e D through the upper end of the body. vital importance in this connection is the location of this slot c which, as shown in Figs. 3 and 4, is located with its cent-ral axis to one side of the longitudinal bore C so that the walls c merge directly into the adjacent wall of the bore. To accommodate for this arrangement the lateral opening c is similarly arranged so as to permit registration with the slot c when desired. A series of set screws F are arranged to project through the neck of the socket body to engage the steel bushing E to prevent the movement of the latter.

For closing the lateral passage D to prevent the escape of the swivel I have arranged the rod G, the lower end of which is shaped to form a tapered shank which seats in a correspondingly shaped socket g formed in the lower wall of the passage D. From the socket g this rod G extends upwardly through an opening g, the latter being aligned with the socket g, and extending from the upper wall of the passage D vertically athiQilgh the shoulder ,otgthe socket. @bviously the pin G is arranged to one side of the slot c but is sufficiently adjacent the center of the page D :to fretain a swivel therein. In Figure l a lateral opening g is shown to permit thefinsertion of a suitable tool to engage the lower end of the rod G to-assist inmtheremoval of the latter.

The 4body of the pin vvGr is of sufciently resilient material lto permit 'its removal which is accomplished by first inserting'a Ytool in -the lateral opening g to release the I'shank yfrom the socket and 'then elevating same above :such socket so as to allow the body of the rod to be bent until lber can belowered Vand the upper end will vbe withdrawn'from the opening g. 'To replacey or insert a new rodthe opera-tion is jthe reverse inthat'the upper end of the rod @is inserted in the lower end of the opening g nand-'then moved -upwardly Obviously this ymember'.i-sfbent until the shank end passes -the lowerv'wall of vvthe lateral opening D at operation, this, however, is common in the vart and does not jform an element of the Hpresent -in vention.

:In use, the swivel shown in Fig. 2 in dotted lines, can Le removed or replaced by the removal of the pinl Gr and the movement ofthe steel' bushing E, 'the' latter being caused to register with the opening c. By these adjustments `it will'be obvious that'the swivel and cable can be moved as a unit. Also it will be observed that I Ahave provided a construction which, while it has all of the desired features of the" Miller and VHolliday socket, has not the disadvantage .of beligweakened to any degree. The present socket is capable of use with any type for size tool.

Having thus described my invention What xIy claim 4as Vnew .and desire to secure by Letters Patent is l, A swivel socket formed at its lower end -to connect withwelltools, a swivel chamber and a vbore of smaller-diameter extending from said 4swivel `chamber through the longitudinal a-Xis of the socketbody, atransverse slot extending i'romthe bore and communieating therewith and "being offsety with relation yto- 1thelongitudinal axis, -a split bushing arrangedavitliin said bore and adapted for anovementto clcse the transverse passage, and alpin-for closing communication to the chamber.

2.A swivel socket body 'formed with a 4threaded 4lower end and central chamber, a transverse passage communicating with said chamber through the neck of said body, said body being iormed with a transverse slot communicating with said bore, a steel bushing formed witlra slotted side wall adaptedv ier registration with the transverse passage and means 1'for locking said :bushing in adjusted position.

3. The substanceeofclaim 2, characterized in that a vertical pin is providedat one side of the transverse slot Yfor closing the lateral passage communicatingl withy the chamber.

.The substance oic claimijI characterized in thatlthe Asteel bushing is seated flush-with thefsur'face ofthe bore and'fisadapted Afor Vrotary adjustment, and `fastening means for locking the col-lar in adjusted position.

lntestimony .whereof laiiix. my signature.

'PAUL ARBON. 

